Lost educational proposals critical Latin American seems a quixotic action in the context of current political realities - economic neoliberal, where the call to the ephemeral and trivial market appears to be from Adorno and Horkheimer: the new “sirenâ€Â or following the old thesis of Marx, “the new opium of the peopleâ€. This text intends to approach the thought of one of the initiators of the movement of popular education or education critic in Latin America; In fact, the teacher Simon Rodriguez (1769 - 1854)